I did a little research and found out that my statement a few postings back that Mopar rearends were circa 1952/54 is false. The units found in Panzers are 8 3/4". We all knew that. These rears have a round back section with no cover. Their ID#s are 1820657 & 2070742 and they were introduced in 1957. That being said, brings up the question, What rearends were used in the earlier Copar models of 1954/57? Earlier, Mopar made a 8 1/4" but it has a 10 bolt cover. I have never seen a Panzer with a rearend cover. Also Mopar made two different bolt circles, 4" and 4.5" and 3 different pinion shaft sizes and 6 or 7 different ratios depending on application. The ratios vary from a low 4:10 to a high 2:76. Did the factory care about what they put into the new Panzers?

The time line (1957/1960) for the factory to find and purchase these so that they would all be the same is very short and unbelievable.

I got to thinking about the rearend ratios of my two machines so I went out to the garage to check but I do not understand the results. 1 turn off the rear wheel gave me 1 3/4 turns on the pinion for the 1107 and 1 turn gave me 2 revolutions on the T75. So obviously, they have different ratios but the figures do not compute and I do not know my ratios.

If they put it the right way it would just go backwards. They had to put it that way to make the jack shaft to work. The problem with that theres never and lube to get on the pinion bearings. So you should take you tractor and lift the ass end as high as you can get it just to get some lube on the bearings. They show you how much to put in with and alen wrench and that's not a lot . The wheel bearing need lube, and carrier. so you may want to do some Joey Chitwood show with you panzer once and a while.

Chris, as for the 48/53 Dodge I am not sure that is correct. Those were 8 1/4 rears with 10 bolt covers according to what I can find. Now I am starting to understand why the drain plugs were welded. INPUT INPUT I love this site.

Very interesting thread for someone that doesn't know anything about these tractors. Must have been a really stout yard tractor. How much money were these new ? Anyways went on youtube and found this info, sort of goes with what you are discussing here.

Very interesting thread for someone that doesn't know anything about these tractors. Must have been a really stout yard tractor. How much money were these new ? Anyways went on youtube and found this info, sort of goes with what you are discussing here.

Suggested retail for a basic T-70 in 1965 was $529.50. That was without the mower deck.